| Customization: | Available |
|---|---|
| CAS No.: | 5188-07-8 |
| Formula: | CH3nas.Xh2o |
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Basic Information
Product Name: Sodium Methanethiolate
Formula: CH3SNa
Molar Mass: 70.09 g/mol
CAS Number: 5188-07-8
Physical Properties
Appearance: Typically exists as a colorless to yellowish liquid (when dissolved in water or methanol) or a white crystalline solid (anhydrous form).
Odor: Releases a strong, pungent smell of rotten eggs or garlic (characteristic of thiols), even at oncentrations.
Solubility: Highly soluble in water and polar organic solvents (e.g., methanol, ethanol); reacts with acidic compounds.
Melting Point: ~88-90°C (anhydrous solid, decomposes on heating).
Density: ~1.17 g/cm³ (for aqueous solutions, varies with concentration).
Chemical Properties
Reactivity:
A strong nucleophile and base, readily participating in alkylation, sulfidation, and condensation reactions.
Reacts with acids (e.g., hydrochloric acid) to liberate methanethiol (CH3SH), a toxic and flammable gas.
Air-sensitive: Slowly oxidizes in air to form disulfides (e.g., dimethyl disulfide, (CH3S2).
Hydrolysis: In aqueous solutions, it hydrolyzes slightly to produce methanethiol and sodium hydroxide, making the solution alkaline.
Applications
Organic Synthesis:
A key reagent in the production of pharmaceuticals (e.g., antibiotics, antivirals), pesticides (e.g., carbamate insecticides), and fungicides.
Used in the synthesis of thioethers, thiols, and heterocyclic compounds (e.g., thiazoles, thiophenes).
Petrochemical Industry:
As a scavenger for heavy metals (e.g., mercury) in natural gas and petroleum refining, forming stable metal sulfides.
Polymer Industry:
In the production of polymers and resins, such as polyurethanes and synthetic rubbers, as a chain terminator or cross-linking agent.
Electroplating:
Used in electroplating baths to improve the quality of metal coatings, particularly for silver and gold.
Research and Development:
A laboratory reagent for introducing sulfhydryl (-SH) groups into organic molecules.
Health and Safety
Toxicity:
Acute Exposure: Inhalation or ingestion can cause respiratory irritation, nausea, vomiting, and central nervous system depression. High doses may lead to coma or respiratory failure.
Chronic Exposure: Repeated skin contact can cause dermatitis; prolonged inhalation may damage the liver and kidneys.
Hazards:
Flammability: Methanethiol released from reactions is flammable (flash point: -17°C), posing fire and explosion risks.
Corrosivity: Aqueous solutions are alkaline and can cause skin/eye burns (H314 hazard).
Handling Precautions:
Use in a well-ventilated fume hood to avoid inhaling vapors.
Wear chemical-resistant gloves (e.g., neoprene), goggles, and a lab coat.
Avoid contact with acids, oxidizing agents, and moisture-sensitive materials.
In case of spillage, neutralize with dilute acetic acid and absorb with inert material (e.g., sand).
Environmental Impact
Aquatic Toxicity: Methanethiol and its salts are toxic to aquatic organisms, potentially disrupting ecosystems. Biodegradability is limited, and they may bioaccumulate in food chains.
Air Pollution: Volatile methanethiol emissions contribute to odor nuisances and air quality degradation.
| Liquid products | Drum of 5kg ,10 kg ,25 kg ,50 kg 200 kg ,250 kg . 1000 kg IBC drum. TANK with 20 tons ,25 tons . |
| Solid products | Bag of 1 kg ,2 kg ,5 kg ,25 kg ,500kg ,1000 kg . Drum of 25 kg and 50 kg. |
Packaging can be customized according to customer requirements.
Qingdao Jinyu Chemical Co., LTD,which is located in Qingdao City, China, with registered capital of RMB 10 million, is a dynamic chemical import and export enterprise with customer demand as its own responsibility. The founder has been engaged in the chemical industry for more than 20 years. With professional technical and marketing personnel, diversified cooperative factories with synthetic technology and efficient logistics management, we provide services to customers all over the world. After years of hard work, we have selected a number of excellent chemical production cooperative enterprises in China. These enterprises have their own advantages in different chemical synthesis fields. They have passed the strict inspection of suppliers by many customers and formed a long-term and stable strategic partnership with customers. With our partners' excellent equipment, well-trained employees and mature technology, we also continue to provide customers with more products.
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